"Oh god how did this get in here I am not good with computers" is a catchphrase often associated with a partially cropped picture of Happy Cat on a white sheet of paper. It is used as an ironic way of indicating that someone is technologically inept.
The phrase came from a Something Awful thread titled "You can't fight the man, but I'll damn well try!" posted by user Jer on December 8th, 2004. The thread described how Jer had attempted to fight against a parking ticket using various drawings and diagrams:
One of the pages featured a cropped photo of Happy Cat along with the phrase "oh god how did this get in here I am not good with computers":
The Happy Cat image along with the phrase "oh god how did this get here I am not good with computer" was published in the Badger Herald student newspaper for the University of Wisconsin-Madison (date unknown). The YTMND site "Not Even Doom Madison" featuring the newspaper photo was created on September 29th, 2006 and the sites "Happy cat is not good with computers" and "I'm not good with computers" were created later that year.
In 2007, the photograph was reposted on various websites, including Bungie, My Confined Space and Meh.org. On January 27th, 2008, the newspaper image reached the front page of Digg and on February 17th, 2010, the same image reached the front page of Reddit, accumulating 789 up votes prior to being archived.
The phrase is commonly used to introduce a thread or blog post about something computer-related that has gone wrong, such as website downtime, a thread in the wrong forum section or the discovery of an unexpected virus. Sometimes it is used in jest to indicate that a post has been submitted accidentally.
 My Confined Space – OH god, how did this get here i am not good with computer / 5-10-2007
 Reddit – oh god how did i get here i am not good with computer / 9/13/09